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Mouchao E4000 USB-DVB-T- und RTL-SDR-Empfänger Realtek RTL2832U + R820T DVB-T-Tuner

von Mouchao
Preisvergleich Produktbild Mouchao E4000 USB-DVB-T- und RTL-SDR-Empfänger Realtek RTL2832U + R820T DVB-T-Tuner

1.Sticks with this combination (RTL2832 + R820T) are relatively new on the market. The main difference to all the other supported tuners so far is that it uses a Low-IF (3.57 MHz) architecture instead of Zero-IF. That means the tuner is only connected to the In-Phase ADC input, and the internal down converter of the RTL2832 is generating the complex samples. This has the benefit of having no DC offset spike in the middle of the spectrum.
2.The driver originally had a frequency limitation of 40 MHz to 900 MHz, but tests showed that the PLL of my stick can achieve lock up to 1766 MHz, and indeed both ADS-B at 1090 MHz and L-Band DAB at 1463 MHz, as well as GMR at 1556 MHz can be received just fine with the R820T. Also, the PLL could lock again at 1850 MHz to 1860 MHz,
3.The RTL2832U outputs 8-bit I/Q-samples, and the highest theoretically possible sample-rate is 3.2 MS/s, however, the highest sample-rate without lost samples that has been tested so far is 2.8 MS/s. The frequency range is highly dependent of the used tuner, dongles that use the Rafael Micro's R820T offer possible range 25 - 1700 MHz.

Video Capture:Digital only
Functionality:TV Tuner
Broadcast Formats Supported:DVB-T
Color: Black
Stick Size: 94 * 29 *17mm
Remote control Size: 88 * 40 * 7mm
Net weight: 70g

Package Includes:
1 x USB DVB-T Stick With FM & DAB
1 x Extra powerful antenna
1 x CD
1 x remote control

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